摘要
本文根据 2 0 0 1年现场考察与研究获得的信息 ,结合前人研究的资料 ,论述了四川黄河流域区生态环境恶化、沼泽退化的状况 ,其主要表现为 :湖沼萎缩 ,沼泽旱化 ,沼泽逆向生态演替 ,区域土地沙化 ,土壤质量下降 ,野生动物种类、种群数量减少 ,草场退化和鼠害猖獗。分析了区域生态环境退化与人类活动干扰、自然因素作用的关系 。
Based on the information obtained by the on site survey and study,as well as materials from precedent studies,this paper mainly talks about the state of the eco environment deterioration and mire degeneration in Yellow River in Sichuan The behaviors of eco environment deterioration and mire degeneration are as follows:aridity,alteration,retrogressive ecological succession,regional desertification,soil degeneration,decrease of quantity in species and population of rare animals,grassland degeneration and rat disaster rampancy It analyses the relationship between regional eco environment deterioration and human activites as well as natural factors,and proposes the countermeasures upon eco environment protection in the Yellow River Basin in Sichuan
出处
《四川环境》
2003年第4期8-12,共5页
Sichuan Environment
关键词
四川
黄河流域区
生态环境恶化
沼泽退化
形成机制
对策与措施
The Yellow River in Sichuan
eco environment deterioration
mire degeneration
formation mechanism
counter measures
